Deflector for oil-burners.



PVA. CURTIS. I D EFLEGTOR FOR OIL BURNERS.

APPLICATION FILED FEB. 24, 1910.

Patented Jan. 3, 1911.

TJ'NTTED STATES PATENT OFFTQE.

FREDERIC A. CURTIS, 0F TOLEDO, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TOTHE STEEL MANTLE LIGHT COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

DEFLECTOR FOR OIL-BURNERS.

Specification of Letters Patent.

Patented Jan. 3, 1911.

Application filed February 24, 1910. Serial No. 545,705.

To all whom it may concern:

Be it known that I, FREDERIC A. CURTIs, a citizen of the United States,and a resident of Toledo, in the county of Lucas and State of Ohio, haveinvented a certain new and useful Deflector for Oil-Burners; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to the letters and figures of referencemarked thereon, which form a part of this specification.

My invention relates to deflectors for burners of the class particularlyada ted for use in connection with the burning o hydrocarbon oils of lowgravity, such, for instance, as kerosene, in lamps for illuminatingpurposes, but is not restricted to such use as it may be employed in anyconnection for which it may be adapted or appropriate.

The object of my invention is the provision of an improved deflector ofthis class, which is simple and inexpensive of construction, etflcientin its operation, and which effects a perfect combustion of thecarbonaceous gases rising from the burning wick, thus creating a largerand whiter flame than has been possible with the deflectors heretoforeused for such purpose, and reducing the carbon deposits on the chimneyto a minimum.

lowing specification, and a preferred embodiment of the same isillustrated in the accompanying drawings, in which,--

Figures 1 and 2 are different central vertical sections of the usualdome of a lampburner with my invention associated therewith and thewick-tube partly shown in position in the former. Fig. 3 is a bottomview of the same. Fig. 4 is a perspective view of the deflector, Figs.5, 6 and 7 are end, side and top plan views of the same, and Figs. 8 and9 are end and plan views of a blank, partly formed, from which thedeflector is formed.

Referring to the drawings, 1 designates a burner dome which has theusual slot or flame opening 2 in vertical register with the wick-tube 3,all of which parts are common in illuminating burners.

The invention is fully described in the fol- The deflector comprising myinvention is preferably formed in a single piece from a sheet-metalblank A, which is fashioned substantially as indicated in Figs. 8 and 9.The blank comprises the outer parts a, a for forming the side walls ofthe deflector, the inner parts 6, b for forming the end walls of thedeflector, and the outer'parts o, 0, which form laterally projectingledges or wings at the bases of the parts 6, b and attach at their inneredges throughout their lengths to the outer or base edges of the parts6, b, as indicated by the dotted fold lines d, d and at their ends tothe ends of the inner or base edges of the parts a, a, as indicated bythe dotted fold lines 6.

In forming the deflector from the blank A the ends or parts 5, b arebent outwardly in the same direction relative to the blank, atsubstantially rightangles thereto, along their base lines 0?, and thesides or parts a, a are likewise bent in the same direction along thelines 6 until stopped by contact with the tapered side edges 7 of theends 5, b, as indicated, thus causing the sides a, a to incline inwardlyfrom vertical planes whereby to effect a gradual upward transverserestriction of the passage through the deflector, as shown. The parts aand Z) are retained in this form by the provision on their ends of ears9, which are bent around the adjacent edges of the parts.

The sides a, a; are preferably slightly bowed longitudinally thereof tonarrow the deflector opening at its ends, and the upper edges of theends I), Z) are struck outwardly at their central portions, as at h, topermit a horizontal lengthening of the flame, and to also serve asoutward deflecting means for air rising within the burner dome withoutthe ends of the deflector to prevent it from striking and narrowing theflame.

The ledges or outwardly projecting parts 0, 0 serve to fill the spacebetween the bases of the deflector ends I), b and the dome wall toprevent air from rising between such wall and ends, and are providedwith tongues z' for projecting into slits 3' provided in the adjacentwalls of the dome whereby to support the deflector in proper positionwithin the dome, as shown. To prevent a dead air space between thedeflector ends and dome wall, the ledges 0, c are provided with smallopenings is, which permit a suflicientcirculation of air at the ends ofthe deflector to. obviate the dead air spaces and to prevent a.

' diant heat from the flame, and these wallsin turn heat the air passingupwardly within and without the same. A suflicient quantity of air risesthrough the deflector opening to support combustion, and, being heated,more effectually performs such function, while the heated air whichrises without the deflector sides impinges against the flame sides abovethe deflector and serves both to flatten and broaden the flame and alsoto commingle therewith to effect a perfect combustion of all carbonmatter rising with the flame. It is found with this arrangement that avery broad and white flame is provided, which has the maximum lightingefficiency for the size of wick and kind of oil used. The in wardlyinclining of the side walls of the deflector or the lateral contractingof the open ingtherethrough from the bottom to the top thereof directsthe air passing therethrough toward the wick and flame.

I wish it understood that my invention is not limited to any specificconstruction or arrangement of the parts except in so far as suchlimitations are specified in the claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is, 1. The combination with a burner dome, ofan inclosed deflector having its ends spaced from the dome walls andprovided with perforated portions which cooperate with the dome tosupport the deflector and serve to partially deflect air from passingupwardly between the deflector ends and dome walls.

2. The combination with a burner dome, of a deflector. disposed thereinand having ledges projecting from the bases of its ends and cooperatingwith the dome to support the deflector and closing the upward passage 7between the deflector ends and dome walls,

said ledges having openings therein to permit a restricted passage ofair through such portions. I

3. A deflector of the class described comprising opposing ends and sidesand having ledges projecting laterally from its ends at the basesthereof to serve to deflect air and also as supports forthe deflector,said ends and sides having their end edges integrally T connectedadjacent their bases.

to I

A. A deflector. of the class described comprising end and side walls andhaving its end walls provided at their upper ends with outwardly andupwardly flared central del pressions and having ledges projecting fromtheir bases and perforated to form restricted air passages.

5. A blank for deflectors having opposed inwardly projecting portionscapable of being bent outwardly to form end walls, and opposed outwardlyprojecting portions capable of being bent inwardly to form side walls. j

6. A blank for deflectors comprising inwardly projecting portionscapable of being bent outwardly to form end walls, and opposingoutwardly projecting portions capable of being bent inwardly to formside walls, said portions having means at their edges which are capableof cooperating to lock the end and side walls in bent position.

7. A blank for deflectors comprising opposing inwardly projectingportions capable of being bent outwardly to form end walls, opposingoutwardly projecting portions at the sides of the inwardly projectingportions capable of being bent inwardly to form side walls, saidportions having ears which are capable of cooperating to lock saidportions in bent positions and parts projecting from the outer ends ofthe inwardly projecting portions which form supporting ledges for thedeflector when formed.

8. A blank for deflectors comprising inwardly projecting portions havingtheir sides tapered and their inner ends provided with centraldepressions, said portions being capable of being bent outwardly to formend walls of a deflector, opposing outwardly projecting portions at thesides of said inwardly projecting portions capable of being bentinwardly to form side walls of a deflector, portions projecting from theouter ends of the inwardly projecting portions to form supportingledges, said supporting ledges having perforations therein.

9. A blank for deflectors comprising the inwardly projecting portions 6,b, the opposed outwardly projecting portions a, a, and the opposedoutwardly projecting portions 0, c, the portions Z), 6 and a, at havingthe tongues g, g, substantially as and for the purpose described.

10. A blank for deflectors comprising the inwardly projecting portionsb, b, the op-

